18421956

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1783}}^1$

素因数の和:1841

約数の個数: 72

約数和(自身を含む): 54547584

約数和(自身を除く): 36125628

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 1783, 2583, 3444, 3566, 5166, 5349, 7132, 10332, 10698, 12481, 16047, 21396, 24962, 32094, 37443, 49924, 64188, 73103, 74886, 112329, 146206, 149772, 219309, 224658, 292412, 438618, 449316, 511721, 657927, 877236, 1023442, 1315854, 1535163, 2046884, 2631708, 3070326, 4605489, 6140652, 9210978, 18421956]

約数ペア:

[(1, 18421956), (2, 9210978), (3, 6140652), (4, 4605489), (6, 3070326), (7, 2631708), (9, 2046884), (12, 1535163), (14, 1315854), (18, 1023442), (21, 877236), (28, 657927), (36, 511721), (41, 449316), (42, 438618), (63, 292412), (82, 224658), (84, 219309), (123, 149772), (126, 146206), (164, 112329), (246, 74886), (252, 73103), (287, 64188), (369, 49924), (492, 37443), (574, 32094), (738, 24962), (861, 21396), (1148, 16047), (1476, 12481), (1722, 10698), (1783, 10332), (2583, 7132), (3444, 5349), (3566, 5166)]